Auxiliary adjustable pedal attachment for piano pedals



Feb. 11, 1925. 1,52%,999

S. S. MIZNER ET AL AUXILIARY ADJUSTABLE PEDAL ATTACHMENT FOR PIANOPBDALS Filed May 10, 1922 INVENTOR. dtqnley J. Mizmr BY Maude L. MiznerPatented Feb. 17, 1925.

UNITED STATES 1,526,993 PATENT OFFICE.

STANLEY S. MTZNER AND MAUDE L. MIZNER, OF STURGIS, MICHIGAN.

AUXILIARY ADJUSTABLE PEDAL ATTACHMENT FOR PLANO PEDALS.

Application filed May 10,

To all whom it may concern:

Be it known that we, STANLEY S. MIZNER and MAUDE L. MIZNER, citizens ofthe United States, residing at Sturgis, county of St. Joseph, State ofMichigan, have invented certain new and useful Improvements in AuxiliaryAdjustable Pedal Attachments for Piano Pedals, of which the following isa specification.

This invention relates to an auxiliary adjustable pedal attachment forpiano pedals.

The objects of the invention are,

First, to provide an improved means for attaching such a pedal.

Second, to provide improved means of adjusting the same. 7

Third, to produce a structure which is simple and unobstructive inappearance.

Objects pertaining to details and economies of construction andoperation will definitely appear from the detailed description tofollow.

lVe accomplish the objects of our inven tion by the devices and meansdescribed in the following specification. The invention is clearlydefined and pointed out in the claims.

A structure which is a preferred einbodi ment of the invention isclearly illustrated in the accompanying drawing forming a part of thisspecification, in which:

Fig. I is a perspective view of our auxiliary pedal attachment beforebeing attached to the piano.

Fig. II is a side elevational view of the same structure in position ona piano pedal, one position being shown in full lines and anotherposition in dotted lines.

Fig. III is an enlarged detail inverted plan view of one of theadjusting joints and its thumbscrew.

Fig. IV is an enlarged detail elevation view of the foot piece joint.

In the drawing the similar numerals of reference refer to similar partsthroughout the several views.

The parts of the drawing will be con sidered by their numbers. 1 is apiano pedal. 2 is the bottom attaching plate of our improved auxiliarypedal provided with a yoke 3 with an internally threaded boss 4 at thetop. carrying the adjustable thumb screw 5 with swiveled head 6 at itslower end. The said head is protected with a felt pad and, beingslightly concave on its under sur face, seats securely when the screw isturned 1922. Serial No. 559,956.

down. The plate 2 is perforated at 8 to facilitate the construction ofthis swiveled head which is accomplished by upsetting the end of thethumbscrew within the said swiveled head, the tool or punch for thatpurpose being introduced through the hole 8.

9 is the adjustable supporting arm. 10 is the flattened attaching headof the same provided with the engaging tooth 11 for purposes ofadjustment. The attaching plate 2 is provided with a similar joint heador member 21 with a series preferably of three notches 22 for engagementby the tooth 11 of the head 10. 12 is the thumb screw inserted throughthe joint whereby the same may be effectively adjusted, the arm 9 beingset to the proper position for the tooth 11 to engage the required notch22.

The footpiece 13 is provided with a joint member 14 similar to one ofthe joint members already described. The joint member 16 is on the upperend of the adjustable arm 9. These are adjusted by the thumbscrew 15 andare provided with a tooth and notched means like that already describedon the lower joint.

From what we have described it will be seen that the attaching plate 2is placed beneath the pedal 1 and the yoke properly adjusted and theswiveled head (3 screwed down on the upper surface of the piano pedal.The swivel head, being concave and padded, very accurately fits theupper surface of the pedal, owing to the loose swivel 6 of the clampinghead, and the pedal is thus very firmly attached. The arm 9 is thenadjusted tothe right angle to secure the proper elevation and is set bythe thumbscrew 12. The footpiece 13 is then set to the right angle andthe joint adjusted by means of the thumb screw 15.

While we have shown the structure with three adjustments it is veryclear that the same might be provided with a larger or smaller number,but the capacity we have illustrated is found to be sufiicient for allordinary circumstances. Only extraordinary conditions would requirelarger adjustment than we have here shown. The extent of the adjustmentmay also be varied by making the arm 9 longer or shorter.

While we have described a very superior clamp for attaching to the pedalwe are aware that this attachment might be accomplished otherwise andthe foot-piece 13 be adjusted as we have shown here.

a yoke with central screw threaded hole arched above said plate toembrace the pedal, a thumb screw in said threaded hole, and aswivelhead-for the-said thumb screw --for engagement with the top ofsaid pedal, -ofan" adjustable arm with adjusting jointcomprisingco-operating notched and toothed'joint parts with clamping setscrew, and with'a: foot piece at the upper end of said arm haingan-adjustable joint com prising co operatingnotched and toothed partswith clamping set screw co-acting for the purposespecified.

2;-'Inan auxiliary pedal attachment the combinationwith an attachingclamp, of an .adj-ustablearm with adjusting joint comprisingcO-Operatingnotched and toothed joint parts with clampingset screw, and

with a 'foot piece at the upper end of said I arm having an adjustablejoint comprising ctr-operating notched and toothedparts with clampingset screw, coa'cting for the purpose specified.

3. In an auxiliary pedal attaclrn1ent, the combination with an attachingclamp with a plate fitted tothe under sideot the pedal,

a yoke with central screw'threaded hole arched above said platetoembrace the pedal, a thumb screw in said threaded hole, and a swivelhead for the said thumb screw for engagement with the top of said pedal,of an adjustable arm with adjusting joint comprising co-op era tingnotched and toothed joint partswith clamping set screw, and

with a foot piece at tire upper end of said arm, coacting for thepurpose specified.

4. In an auxiliary pedal attachment the combination of an attachingclamp with a plate fitted to the under side of the pedal,

a yoke with central screw threaded hole arched above said plate toembrace the pedal, a thumb screw in said threat ed hole, and a swivelhead for the said thumb screw for engagement with the top 01 said pedal,

coacting for the purpose specified. v

In witness whereof, we have hereunto set our hands and seals.

STANLEYS. MIZNER. "[L.S.] Mrs. MAUDE L. 'MIZNER. [Ls]

